65232723217 has 4 divisors (see below), whose sum is σ = 65233731556. Its totient is φ = 65231714880.

The previous prime is 65232723151. The next prime is 65232723229. The reversal of 65232723217 is 71232723256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11260605456 + 53972117761 = 106116^2 + 232319^2 .

It is a cyclic number.

It is not a de Polignac number, because 65232723217 - 2¹⁹ = 65232198929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65232723217.

It is not an unprimeable number, because it can be changed into a prime (65232723287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399948 + ... + 538909.

It is an arithmetic number, because the mean of its divisors is an integer number (16308432889).

Almost surely, 2^65232723217 is an apocalyptic number.

It is an amenable number.

65232723217 is a deficient number, since it is larger than the sum of its proper divisors (1008339).

65232723217 is an equidigital number, since it uses as much as digits as its factorization.

65232723217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008338.

The product of its digits is 211680, while the sum is 40.

The spelling of 65232723217 in words is "sixty-five billion, two hundred thirty-two million, seven hundred twenty-three thousand, two hundred seventeen".